Ignition question

[911TES]

Hi all:

I'm trying to get my 1969 911T to idle so I can set-up the rebuilt Webers. I'm currently going thru the ignition system per several recommendation on related posts. The car has been sitting for years.

Mark Ten CDI
Standard points and distributor set-up (Marelli)

I just cleaned-up the coil - Bosch 0221 102 06- and connections.

I got the following readings: Primary 1.2 Ohms and Secondary 10.2k Ohms

I think this is pretty standard, but not necessarily for the CDI. I've seen numbers much lower quoted for the secondary.

Any suggestions or comments?

Thanks, Bill

[HarryD]

Originally Posted by 911TES

Hi all:

I'm trying to get my 1969 911T to idle so I can set-up the rebuilt Webers. I'm currently going thru the ignition system per several recommendation on related posts. The car has been sitting for years.

Mark Ten CDI
Standard points and distributor set-up (Marelli)

I just cleaned-up the coil - Bosch 0221 102 06- and connections.

I got the following readings: Primary 1.2 Ohms and Secondary 10.2k Ohms

I think this is pretty standard, but not necessarily for the CDI. I've seen numbers much lower quoted for the secondary.

Any suggestions or comments?

Thanks, Bill

Bill,

For non-CDI coil that sounds ok. It wil boost the voltage from 12 to 12,000 volts to get your spark.

Check to be sure your wires are ok also. Somewhere, there is a resistance value you should see but I do not remember it. It is posted here somewhere.

[Flat6pac]

If you were using a Bosch or Permatune CD then you would need the coil Bosch that the last 3 numbers are 001
Bruce

[HarryD]

Bruce,

The Mark 10 was an aftermarket system that you attached to your kettering ingintion system to boost the spark. This system predates the Bosch/Permatune CDI Systems. If I am not mistaken, you still need a traditional coil to get a hot enough spark.